The first cluster based on Cavium ThunderX™ ARMv8 is powered by Multitherman

https://www.bizjournals.com/prnewswire/press_releases/2015/11/17/SF59783

E4 Computer Engineering announces production availability and customer shipment of ARKA Server Platforms with Cavium ThunderX™ ARMv8 Workload-Optimized Processors